Stocks ended mostly lower Friday, dipping toward session lows in the final minutes of trading. Tech-related shares bounced after a rout sparked by a sharp rise in Treasury yields, but still suffered weekly losses. The Dow Jones Industrial Average DJIA, -1.50% ended with a loss of around 475 points, or 1.5%, near 30,928, according to preliminary figures. The blue-chip gauge ended the week down 1.8%, its fall cushioned by a rotation into shares of companies more sensitive to the economic cycle. The S&P 500 SPX, -0.48% gave up a modest gain ahead of the closing bell, finishing with a loss of around 18 points, or 0.5%, near 3,811 and leaving it with a weekly decline of 2.5%. The tech-heavy Nasdaq Composite clung to a gain of around 73 points, or 0.6%, to close Friday near 13,332, after suffering its largest one-day percentage fall since October in the previous session. The Nasdaq suffered a 4.9% weekly fall.